Mump 0811 12 Z Performance Rear Suspension Front View

Next, measure the alignments of the axle mount in relation to the passenger-side shock mount. This involves removing the passenger-side spring and raising the control arm back into position with the spring out. The rear axle needs to be raised until both control arms are parallel with the ground. Make sure both jackstands are placed at the same height and that the axle is parallel to the ground. As shown here, the easy way to make sure the axle is parallel is to measure the distance from the ground to each of the rear lower-control-arms pivot bolts. The four pivot bolts (front and rear of both arms) should be the same distance from the ground when the control arms are parallel to the ground.